[458] | 1 | MODULE trazdf |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE trazdf *** |
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| 4 | !! Ocean active tracers: vertical component of the tracer mixing trend |
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| 5 | !!============================================================================== |
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| 6 | !! History : |
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| 7 | !! 9.0 ! 05-11 (G. Madec) Original code |
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| 8 | !!---------------------------------------------------------------------- |
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| 9 | !! tra_zdf : Update the tracer trend with the vertical diffusion |
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| 10 | !! zdf_ctl : ??? |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! * Modules used |
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| 13 | USE oce ! ocean dynamics and tracers variables |
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| 14 | USE dom_oce ! ocean space and time domain variables |
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| 15 | USE zdf_oce ! ocean vertical physics variables |
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| 16 | |
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| 17 | USE trazdf_exp ! vertical diffusion: explicit (tra_zdf_exp routine) |
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| 18 | USE trazdf_imp ! vertical diffusion: implicit (tra_zdf_imp routine) |
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| 19 | USE trazdf_imp_jki ! vertical diffusion implicit (tra_zdf_imp_jki routine) |
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| 20 | |
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| 21 | USE ldftra_oce ! ocean active tracers: lateral physics |
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| 22 | USE trdmod ! ocean active tracers trends |
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| 23 | USE trdmod_oce ! ocean variables trends |
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| 24 | USE in_out_manager ! I/O manager |
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| 25 | USE prtctl ! Print control |
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| 26 | |
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| 27 | IMPLICIT NONE |
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| 28 | PRIVATE |
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| 29 | |
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| 30 | !! * Routine accessibility |
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| 31 | PUBLIC tra_zdf ! routine called by step.F90 |
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| 32 | |
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| 33 | !! * module variables |
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| 34 | INTEGER :: & |
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| 35 | nzdf = 0 ! type vertical diffusion algorithm used |
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| 36 | ! ! defined from ln_zdf... namlist logicals) |
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| 37 | |
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| 38 | !! * Module variables |
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| 39 | REAL(wp), DIMENSION(jpk) :: & |
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| 40 | r2dt ! vertical profile time-step, = 2 rdttra |
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| 41 | ! ! except at nit000 (=rdttra) if neuler=0 |
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| 42 | |
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| 43 | !! * Substitutions |
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| 44 | # include "domzgr_substitute.h90" |
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| 45 | # include "zdfddm_substitute.h90" |
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| 46 | # include "vectopt_loop_substitute.h90" |
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| 47 | !!---------------------------------------------------------------------- |
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| 48 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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| 49 | !!---------------------------------------------------------------------- |
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| 50 | |
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| 51 | CONTAINS |
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| 52 | |
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| 53 | SUBROUTINE tra_zdf( kt ) |
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| 54 | !!---------------------------------------------------------------------- |
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| 55 | !! *** ROUTINE tra_zdf *** |
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| 56 | !! |
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| 57 | !! ** Purpose : compute the vertical ocean tracer physics. |
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| 58 | !! ** Method : |
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| 59 | !! ** Action : |
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| 60 | !! |
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| 61 | !!--------------------------------------------------------------------- |
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| 62 | !! * Arguments |
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| 63 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 64 | |
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| 65 | !! * local declarations |
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| 66 | INTEGER :: jk ! Dummy loop indices |
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| 67 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: & |
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| 68 | ztrdt, ztrds ! 3D temporary workspace |
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| 69 | !!--------------------------------------------------------------------- |
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| 70 | |
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| 71 | IF( kt == nit000 ) CALL zdf_ctl ! initialisation & control of options |
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| 72 | |
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| 73 | ! ! set time step |
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| 74 | IF( neuler == 0 .AND. kt == nit000 ) THEN ! at nit000 |
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| 75 | r2dt(:) = rdttra(:) ! = rdtra (restarting with Euler time stepping) |
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| 76 | ELSEIF( kt <= nit000 + 1) THEN ! at nit000 or nit000+1 |
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| 77 | r2dt(:) = 2. * rdttra(:) ! = 2 rdttra (leapfrog) |
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| 78 | ENDIF |
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| 79 | |
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| 80 | |
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| 81 | IF( l_trdtra ) THEN ! temporary save of ta and sa trends |
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| 82 | ztrdt(:,:,:) = ta(:,:,:) |
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| 83 | ztrds(:,:,:) = sa(:,:,:) |
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| 84 | ENDIF |
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| 85 | |
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| 86 | SELECT CASE ( nzdf ) ! compute lateral mixing trend and add it to the general trend |
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| 87 | CASE ( -1 ) ! esopa: test all possibility with control print |
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| 88 | CALL tra_zdf_exp ( kt, r2dt ) |
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| 89 | CALL prt_ctl( tab3d_1=ta, clinfo1=' zdf0 - Ta: ', mask1=tmask, & |
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| 90 | & tab3d_2=sa, clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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| 91 | CALL tra_zdf_imp ( kt, r2dt ) |
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| 92 | CALL prt_ctl( tab3d_1=ta, clinfo1=' zdf1 - Ta: ', mask1=tmask, & |
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| 93 | & tab3d_2=sa, clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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| 94 | CALL tra_zdf_imp_jki( kt, r2dt ) |
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| 95 | CALL prt_ctl( tab3d_1=ta, clinfo1=' zdf2 - Ta: ', mask1=tmask, & |
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| 96 | & tab3d_2=sa, clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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| 97 | |
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| 98 | CASE ( 0 ) ! explicit scheme |
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| 99 | CALL tra_zdf_exp ( kt, r2dt ) |
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| 100 | IF( l_trdtra ) THEN ! save the vertical diffusive trends for further diagnostics |
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| 101 | ztrdt(:,:,:) = ta(:,:,:) - ztrdt(:,:,:) |
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| 102 | ztrds(:,:,:) = sa(:,:,:) - ztrds(:,:,:) |
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| 103 | CALL trd_mod( ztrdt, ztrds, jpttdzdf, 'TRA', kt ) |
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| 104 | ENDIF |
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| 105 | |
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| 106 | CASE ( 1 ) ! implicit scheme (k-j-i loop) |
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| 107 | CALL tra_zdf_imp ( kt, r2dt ) |
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| 108 | IF( l_trdtra ) THEN ! save the vertical diffusive trends for further diagnostics |
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| 109 | DO jk = 1, jpkm1 |
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| 110 | ztrdt(:,:,jk) = ( ( ta(:,:,jk) - tb(:,:,jk) ) / r2dt(jk) ) - ztrdt(:,:,jk) |
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| 111 | ztrds(:,:,jk) = ( ( sa(:,:,jk) - sb(:,:,jk) ) / r2dt(jk) ) - ztrds(:,:,jk) |
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| 112 | END DO |
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| 113 | CALL trd_mod( ztrdt, ztrds, jpttdzdf, 'TRA', kt ) |
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| 114 | ENDIF |
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| 115 | |
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| 116 | CASE ( 2 ) ! implicit scheme (j-k-i loop) |
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| 117 | CALL tra_zdf_imp_jki( kt, r2dt ) |
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| 118 | IF( l_trdtra ) THEN ! save the vertical diffusive trends for further diagnostics |
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| 119 | DO jk = 1, jpkm1 |
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| 120 | ztrdt(:,:,jk) = ( ( ta(:,:,jk) - tb(:,:,jk) ) / r2dt(jk) ) - ztrdt(:,:,jk) |
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| 121 | ztrds(:,:,jk) = ( ( sa(:,:,jk) - sb(:,:,jk) ) / r2dt(jk) ) - ztrds(:,:,jk) |
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| 122 | END DO |
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| 123 | CALL trd_mod( ztrdt, ztrds, jpttdzdf, 'TRA', kt ) |
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| 124 | ENDIF |
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| 125 | |
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| 126 | END SELECT |
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| 127 | |
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| 128 | ! ! print mean trends (used for debugging) |
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| 129 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ta, clinfo1=' zdf - Ta: ', mask1=tmask, & |
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| 130 | & tab3d_2=sa, clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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| 131 | |
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| 132 | END SUBROUTINE tra_zdf |
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| 133 | |
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| 134 | |
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| 135 | SUBROUTINE zdf_ctl |
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| 136 | !!---------------------------------------------------------------------- |
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| 137 | !! *** ROUTINE zdf_ctl *** |
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| 138 | !! |
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| 139 | !! ** Purpose : Choose the vertical mixing scheme |
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| 140 | !! |
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| 141 | !! ** Method : Set nzdf from ln_zdfexp and 'key_mpp_omp'. |
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| 142 | !! nzdf = 0 explicit (time-splitting) scheme (ln_zdfexp=T) |
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| 143 | !! = 1 implicit (euler backward) scheme (ln_zdfexp=F) |
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| 144 | !! = 2 implicit (euler backward) scheme with j-k-i loops |
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| 145 | !! (ln_zdfexp=T and 'key_mpp_omp') |
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| 146 | !! NB: rotation of lateral mixing operator or TKE or KPP scheme, |
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| 147 | !! the implicit scheme is required. |
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| 148 | !! |
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| 149 | !!---------------------------------------------------------------------- |
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| 150 | !! * Module used |
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| 151 | USE zdftke |
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| 152 | USE zdfkpp |
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| 153 | !!---------------------------------------------------------------------- |
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| 154 | |
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| 155 | ! Define the vertical tracer physics scheme |
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| 156 | ! ========================================== |
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| 157 | |
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| 158 | ! Choice from ln_zdfexp already read in namelist in zdfini module |
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| 159 | IF( ln_zdfexp ) THEN ! use explicit scheme |
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| 160 | nzdf = 0 |
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| 161 | ELSE ! use implicit scheme |
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| 162 | nzdf = 1 |
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| 163 | ENDIF |
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| 164 | |
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| 165 | ! Force implicit schemes |
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| 166 | IF( lk_zdftke .OR. lk_zdfkpp ) nzdf = 1 ! TKE or KPP physics |
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| 167 | IF( ln_traldf_iso ) nzdf = 1 ! iso-neutral lateral physics |
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| 168 | IF( ln_traldf_hor .AND. ln_sco ) nzdf = 1 ! horizontal lateral physics in s-coordinate |
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| 169 | |
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| 170 | ! NEC autotasking / OpenMP |
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| 171 | #if defined key_mpp_omp |
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| 172 | IF( nzdf == 1 ) nzdf = 2 ! j-k-i loop |
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| 173 | #endif |
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| 174 | |
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| 175 | ! Test: esopa |
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| 176 | IF( lk_esopa ) nzdf = -1 ! All schemes used |
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| 177 | |
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| 178 | IF(lwp) THEN |
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| 179 | WRITE(numout,*) |
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| 180 | WRITE(numout,*) 'tra:zdf_ctl : vertical tracer physics scheme' |
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| 181 | WRITE(numout,*) '~~~~~~~~~~~' |
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| 182 | IF( nzdf == -1 ) WRITE(numout,*) ' ESOPA test All scheme used' |
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| 183 | IF( nzdf == 0 ) WRITE(numout,*) ' Explicit time-splitting scheme' |
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| 184 | IF( nzdf == 1 ) WRITE(numout,*) ' Implicit (euler backward) scheme' |
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| 185 | IF( nzdf == 2 ) WRITE(numout,*) ' Implicit (euler backward) scheme with j-k-i loops' |
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| 186 | ENDIF |
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| 187 | |
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| 188 | END SUBROUTINE zdf_ctl |
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| 189 | |
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| 190 | !!============================================================================== |
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| 191 | END MODULE trazdf |
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